Lighting device

Abstract

The invention relates to the technical field of lighting devices, and discloses a lighting device capable of guaranteeing heat dissipation and electrical insulation and increasing loop space, the lighting device comprises a shell containing a lighting circuit main substrate and a radiator, the shell comprises: a shell wall, two ends of which are open, and an inner shell wall which is arranged in the outer shell wall in an arc shape in the mode that an inserting groove space is formed between the inner shell wall and the outer shell wall, and a first groove is formed in a part of the outer shell wall without the inner shell wall; the radiator comprises an arc-shaped radiating wall with at least one end open and a second groove formed in the radiating wall, the radiating wall is matched withthe corresponding slot space, and the second groove is matched with the corresponding first groove. According to the lighting device, the arc-shaped heat dissipation wall is inserted into the inserting groove space to achieve heat dissipation, meanwhile, the groove formed in the heat dissipation wall is used for increasing the loop space where the circuit substrate part of the lighting device canbe arranged, or the size of the shell can be reduced while heat dissipation is guaranteed, and the requirement for miniaturization of the shell is met.

Description

technical field [0001] The invention relates to the technical field of lighting devices, in particular to a lighting device that ensures heat dissipation and electrical insulation, and increases loop space. Background technique [0002] The lighting device includes a lighting circuit main substrate, a casing and a radiator, and the casing cooperates with the radiator to fix the lighting circuit main substrate in the inner space of the casing. [0003] In the prior art, such as the Chinese patent application whose publication number is CN105874886A discloses a kind of LED lamp, such as figure 1 As shown, in order to ensure the heat dissipation and electrical insulation of the LED lamp, the housing is set to be composed of an inner shell wall (ie, the inner surface of the prior art CN105874886A) and an outer shell wall (ie, the outer surface of the prior art CN105874886A), and the inner shell wall A slot space for inserting the cooling wall of the radiator is formed between t...

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned LED lamps disclosed in the prior art, the casing has the disadvantage that the loop space capable of accommodating the circuit board part of the lighting device is small. In order to increase the size of the loop space, if the inner shell wall and the outer shell wall size, it will cause the shell to be larger and unable to meet the needs of the shell miniaturization

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